Use drag event's dataTransfer
Abstraction for transferBetweenLists
Test copy functionality
Refactor droppable
unify header popup menus toggle behaviour
remove old toggle script
simplify css
Merge remote-tracking branch 'origin/master' into top-nav-improvements
Pub/sub for copy/paste updates
Better fn composition
fix additional top section hide
Split out new-items functions
Better fn composition
Merge remote-tracking branch 'origin/master' into fix-top-bar
Merge remote-tracking branch 'origin/master' into fix-top-bar
Hover states for tools
Fix tools and sparks
add observer logos
display observer logo on observer front
point observer logo to observer front